# Document Scanner vs M91

The clearest difference is in-app purchases: M91 at none against Document Scanner's 3. M91 also leads on update cadence (every 9 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Document Scanner sells 3 in-app purchases, starting at $4.99 per month. M91 asks for nothing beyond the download.

Document Scanner ships an update every 3 months, M91 every 9 days. The most recent releases landed on November 7, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Document Scanner | M91 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (326 ratings)](https://appshunter.io/ios/app/document-scanner-scan-photo/id1535437781/reviews)** | — |
| Number of ratings | **326** | — |
| Positive reviews | 92.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 33 MB | 30 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Devkrushna Infotech Private Limited](https://appshunter.io/developer/1491441074) | [Walkover Web Solutions Pvt. Ltd.](https://appshunter.io/developer/793737585) |

## What reviewers say

### Document Scanner

[App page](https://appshunter.io/ios/app/document-scanner-scan-photo/id1535437781)

Transform your mobile device into a powerful scanner. Easily capture, enhance, and share documents as PDFs or JPEGs. Features include OCR, e-signatures, and secure document storage.

**Highlights:** Fast mobile scanning, Optimize scan quality, E-signature functionality, OCR text recognition, Secure document storage, AirPrint compatibility, Share PDF/JPEG files

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (1 Month) | $4.99 | per month |
| Premium (1 Year) | $19.99 | per year |
| Remove Ads forever | $8.99 | one-time |

**What reviewers like**

- 👍 User-friendly and simple interface
- 🚀 Fast document scanning and PDF conversion
- 💰 Free to use with no mandatory paid features
- 📱 Works well on mobile and iPad
- 🎯 High-quality PDF output

**What reviewers complain about**

- 📺 Excessive ads during usage
- 🐛 Blurry image quality issues
- 🔍 Missing document search functionality
- ✏️ Signature feature not working properly
- ⚙️ Batch editing of pages unavailable

**Reported bugs**

- Signature option not working
- Blurry image capture
- Unable to scan documents
- App crashes or freezes

**Requested features**

- Search functionality for saved documents by name
- Batch editing option for multiple pages
- Signature feature improvement
- Reduce or remove ads
- Increase page scanning capacity


### M91

[App page](https://appshunter.io/ios/app/m91/id6759090472)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Document Scanner free?

Document Scanner is free to download, with in-app purchases available.

### Is M91 free?

M91 is free to download, with no in-app purchases.

### Do Document Scanner or M91 have ads?

Neither Document Scanner nor M91 shows ads.

### Which is updated more often, Document Scanner or M91?

Document Scanner ships an update every 3 months, and M91 every 9 days. Most recently, Document Scanner was updated on November 7, 2026 and M91 on November 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*